Horizontal circulating-boiler



A{No Model.)

Y y11R'.sImPIrf/Ilan.

HORIZONTAL .GyIR-GUIIATING BILER.. l

LNG. 501,739. 'Patented July 18, 189.3.

certain extent.

UNITED STATES PATENT OEETCE.

HOIVARD R. -Sl-IEPPARD, O-F PHILADELPHIA, PENNSYLVANIA.

HORIZONTAL ClRCULATlNG-BOILER.

SPECIFICATION forming part of Letters Patent No. 501,739, dated July 18, 1893. Application filed March Z6, 1891. Serial No. 386 ,434. (No model.)

'lhe'object of my invention is to so con-- struct a horizontal circulating boiler for use in ranges, rizo., that the expensive fittings heretofore necessary may be dispensed with to a This object I attain in the following manner, reference being had to the accompanying drawings, in whichv Figure I, is a perspective view showing the boiler and illustrating ,my improvements, the range being shown in dotted lines. Fig. 2, is a longitudinal sectional view of the boiler. Fig. 3, is a perspective view of the head. Fig. 4, is a longitudinal view showing another method of applying my improvements to a boilerof a double oven'range; and Fig. 5, is a lss perspective view ofthe center section shown in Fig. 4.

Referring to the drawings, A is the range on which is mounted the horizontal boiler B.

c. is the cold water inlet pipe to the boiler and b is the hot water outlet from the boiler to the house. Thesetwo pipes are coupled to the head as heretofore.

c is thc hot water connecting pipe extending from the boiler to the water back, and d is the cold water connecting pipe extending from the water back to the boiler.

Heretofore the pipes from the water-back have been provided with couplings, return bends and small sections of pipe, making it troublesome and expensive to couple up the boiler to the range.

The range illustrated is of the class termed portable ranges dispensing with the use of brickwork in its construction, but my boiler can be coupled to other ranges as well, without departing from my invention.

As shown in Figs. 2 and 3, I preferably make the head D of the boiler B a casting having openings o. b for the pipes a. b and in the iiange of the head e are two openings c d. to which are coupled directly the pipes c d. I form an extension of the hot Water pipe c by continuing the pipe in the form preferably of a tube fcastin the head of the boiler as shown in Figs. 2 and 3, this tube extending preferably about mid way of the boiler. Thus it will be seen that the joints between the pipes c d are plain screw joints being tapped into the Iiange of the head, as shown in Fig. l. By connecting the pipes for circulating hot and cold, and return water, as shown and described, the circulation is more readily accomplished by reason of the fact that the hot water from the water back is discharged near the circulating outlet of the boiler, whilel the cold water coming into the lower part of the boiler cannot interfere with the natural movement of the heated water, which tends to rise to the top of the boiler. The tube j' is, by preference on the inside of the head and cast therewith, but in some instances it may be bolted thereto or otherwise attached as circumstances may require. The head is readily riveted to the boiler, the flange being deep enough to allow for the openings c d. 3 In some instances the boiler may be made with two sheets B B with the section D. in thecenter as shown in Figs. 4t and 5, said section being riveted to the two sheets of the boiler, as shown in said figures. This section is preferably cast and has openings d and c forthe two pipes c d and the extension f is preferably cast on the inner. side of the vsection shown in the perspective view opening at about the center of the boiler. In this case the tubes c d connect with the water-back on the under side. This form I prefer to use on double-oven ranges, in which the water-back is in the center.

I claim as my invention-n 1. In a horizontal circulating boiler, the combination with the shell thereof of a flanged section having radial openings for hot and return water from the water-back, the former being integral with said iianged section, and also having side openings for hot Water outlet and cold water. inlet, the former being above the line of incoming cold water, substantially as set forth.

2. In a horizontal range boiler, the combination with the shell of said boiler, of a flanged head section projecting beyond the range, provided with radial openings for hot and return water pipes, whereby the said pipes may be directly connected to said boiler, substantially as set forth.

for the hot waterpipe and the other for the return pipe-to the water-backoarange, said head also provided with upper and lower openings for circulating and cold water pipes, respectively, substantially as. and for the pur- Ypose set forth.

In testimony whereof Il have signed my name to this specification in the presence of two subscribing- Witnesses.

HOWARD R. SHEPPARD.

Witnesses:

HENRY HovvsoN, EUGENEELTERICH. 

